Debug Excessively Slow Stepping Through Code

[teschste-reyrey]

Go version

1.22.1

Output of go env in your module/workspace:

GO111MODULE=auto
GOARCH=amd64
GOBIN=
GOCACHE=C:\Users\teschste\AppData\Local\go-build
GOENV=C:\Users\teschste\AppData\Roaming\go\env
GOEXE=.exe
GOEXPERIMENT=
GOFLAGS=
GOHOSTARCH=amd64
GOHOSTOS=windows
GOINSECURE=
GOMODCACHE=C:\Users\teschste\go\pkg\mod
GONOPROXY=tssgit.reyrey.com/*
GONOSUMDB=tssgit.reyrey.com/*
GOOS=windows
GOPATH=C:\Users\teschste\go
GOPRIVATE=tssgit.reyrey.com/*
GOPROXY=https://proxy.golang.org,direct
GOROOT=C:\Program Files\Go
GOSUMDB=sum.golang.org
GOTMPDIR=
GOTOOLCHAIN=auto
GOTOOLDIR=C:\Program Files\Go\pkg\tool\windows_amd64
GOVCS=
GOVERSION=go1.22.1
GCCGO=gccgo
GOAMD64=v1
AR=ar
CC=gcc
CXX=g++
CGO_ENABLED=1
GOMOD=E:\Dev\Programs\Hardware Manuals DB Sync\go.mod
GOWORK=
CGO_CFLAGS=-O2 -g
CGO_CPPFLAGS=
CGO_CXXFLAGS=-O2 -g
CGO_FFLAGS=-O2 -g
CGO_LDFLAGS=-O2 -g
PKG_CONFIG=pkg-config
GOGCCFLAGS=-m64 -mthreads -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=C:\Users\teschste\AppData\Local\Temp\go-build3612461297=/tmp/go-build -gno-record-gcc-switches

What did you do?

Stepped through Go code in VS Code.

What did you see happen?

Instead of each step being almost instantaneous as usual, each step takes anywhere from 2-3 seconds for a 2 line application, to 12-13 seconds for a larger application.

I am not certain what triggered it, though it was shortly after upgrading to v1.22.1 that I noticed it.

If I just run the app in VS Code (assuming there are no errors), it runs fast as usual, this only occurs when stepping through the code.

I moved back down to v1.21.8 to see if it was related to my recent upgrade but the issue remained, so I moved back up to 1.22.1.

Since I saw no other issues like this reported, this is likely something unique to me but I even tried completely uninstalling and reinstalling Go with no improvement and nothing else changed in the timeframe this occurred.

What did you expect to see?

Each step occurring almost instantly as it always has in the past.

[teschste-reyrey]

Since I also recently upgraded to VS Code 1.87, I tried going back to version 1.86 but that did not help either.

[seankhliao]

sounds like an issue for the debugger (delve?) and not the go project.

[teschste-reyrey]

Not sure if this changes your thinking at all but this post was just added to the issue I logged under delve. Not sure if this puts the ball back in your court, VS Code's court, or somewhere else but an issue that is potentially "fixed" by switching to a preview version of the Go extension seems concerning. Thoughts?

For what it's worth, switching to Go Nightly did NOT resolve the issue for me, nor did disabling all anti-virus.